Clutch



(No Model.)

Fiyi.

W. W. WYTHE.

GLUTGH;

Patented Aug. 21, .1883.

WITNESSES 2 mwen: BY M ATTORNEYS.

tion.

pulley, A.

of the disk c is an eccentric, e.

l UNITED STATES.

larinrr Fries.

VILLIAMv XV. VYTHE, OF RED BANK, N ENV JERSEY.

CLUTCH.

. SPECIFICATION forming part of Letters Patent No. 283,452, dated August 21, 1883.

Application filed December 13, 1882. (No model.)

following is a'full, clear, and exact description. v

vMy invention consists in clutch mechanism, constructed as hereinafter described and claimed.

Reference is to be had tothe accompanying drawings, forming a part of this specification,

in which similar letters of reference vinduzate corresponding parts in all the figures.

Figure l is a transverse section of my iinproved mechanism as applied to a pulley, on line a" 1v, Fig. 2, when the disk ais in posi- Fig. 2 is a plan View of the pulley with one disk removed. Fig. 3 is a plan view of one ofthe flanged disks, with the ring inthe recess thereof.

The mechanism may be used for couplings, pulleys with hoisting-drums, or otherwise, for engaging and disengaging a prime mover. AS shown, theiuvention is applied as a clutch- The pulley consists of two circular disks, a c', one of which is made with a flange, b, so

`as'to form a case in which the friction devices are contained;

c c is a divided shaft, the disk a being attached upon the end of one portion and the disk c upon the other portion; or, if the shaft be continuous, one disk will be loose. The disk a is formed with a hub that projects at both sides, so as to receive both ends of the divided shaft. Around the part d of the hub Around this eccentric is a circular disk, f, and outside of that, between it and the ilauge Z), is a clamping-Wedge, preferably made in the form of an eccentric ring, g, or a segment thereof.

The disk c is provided with a hole for receiving pin, g', projecting from the outer eccentric, g, so as to lock the parts. Upon the end of the shaft connected to the disk c is fitted a sliding collar, 7c, vadapted to be moved-to or from the pulley by a lever, K', and is provided with a pin, l, that passes through the hub of the disk c, opposite a hole,

m, that is provided in the inner eccentric, c, so that by the movement of the sleeve the piu.

maybe entered in the hole Im, or Withdrawn therefrom. The disk a is formed interiorly With an elliptical recess, a?, in which is aring, a, having at one side pins o o, that enter slots o o', formed in the disk a, and at the other side pins p p, that enter slots p p', formed in the ring f, the slots inthe ring j" being at right angles to those in the disk a. The inner sur face of the eccentric g is provided With two in- Wardly-projecting lugs, g2, so that it Will only bear upon the riugf at those points, and thus permit the mechanism to be cl ampedwhen movingin either direction. In operation, the disk a', being in rotation with the sleeve k, moved out todisengage the pin Z from` the eccentric e, the ring fis clamped by the eceentrics e g, and the disk c is thereby carried around with the disk a. Vhen the sleeve is moved inward, and the pin l engages with the eccentric e, this eccentric is caused to move with the disk a', to which the outer eccentric, g, is locked, and as both of the said cccentrics are new locked tolthe disk c', they never change Atheir position with respect to each other, and consequently there will be no clamping action so long as the said eccentric e is locked tothe disk a. While the eccentric e is locked to kthe disk a the ring f is given an oscillating movement by the said eccentric, the ring u serving to prevent rotation of the same, but allowing of its shifting movement.

It is to be observed that the clamping is caused by a Wedge action induced by the rotation of the disk u when the eccentric e is not locked thereto. The movement of the clutching, as it simply releases the parts, so that they arefree to clutch.

Having thus described my inventioml claim as new and desire to seeureyby'lietters Patentl. The combination, with a pulley, of an inner rotating eccentric, an intermediate nonrotating disk, and an outer clamp or segment connected to one of the disks of said pulley, substantially as herein shown and described.

2. The combination, with the disks a o, of the inner rotating eccentric, e, the disk f, the outer clamp or segment, g, and the ring a, secured in a recess of the disk a, and connected to the disk f, substantiallyas herein shown and described.

3, The combination, with the disks a a', the

sleeve K outwardV is not the movement of.

IOO

with the flange b, the ring n, provided With pins o p, the disk j', provided with the slots 1o p p', and the inner eccentric, e, substantially as herein shown and described.

WILLIAM W. WYTHE.

apertnred inner eccentric, e, the non-rotating disk f, and the outer clamp or segment,` g, oonnected to the disk a', of the sliding collar k, vprovided With the pin Z, substantially as herein 5 shown and described.

4. The combination, with the disk a, and the outer clamp or segment, g, secured thereto, of the recessed and slotted disk a, provided Witnesses:

GEO. D. WALKER, EDWD. M. CLARK. 

